Does Korea have the highest participation because of CyWorld, or because Koreans love to connect?

Why are Germany, and especially France, so low? Is it something about the way French people behave online, or is there an opening for a great French social network (or the French version of an existing one, like Facebook)?

The data from France is something I found particularly interesting. Given that the French blogosphere is active, I would be interested to know why the number of regular social network users in France is comparatively low. Josh finishes his post by asking for reader comments regarding their thoughts on how social network use will play out in the countries listed in the chart. I invite you to do the same below.